Performance factor N
L
at heating water flow temperature
90 °C
1.6
80 °C
1.5
70 °C
1.4
Information regarding performance factor N
L
The performance factor N
L
depends on the cylinder storage tempera-
ture T
cyl
.
Standard values
■ T
cyl
= 60 °C → 1.0 × N
L
■ T
cyl
= 55 °C → 0.75 × N
L
■ T
cyl
= 50 °C → 0.55 × N
L
■ T
cyl
= 45 °C → 0.3 × N
L
Peak output (over 10 minutes)
Relative to the performance factor N
L
.
DHW heating from 10 to 45 °C.
Peak output (l/10 min) at a heating water flow temperature of
90 °C
173
80 °C
168
70 °C
164
Max. draw-off rate (over 10 minutes)
Relative to the performance factor N
L
.
With reheating.
DHW heating from 10 to 45 °C.
Max. draw-off rate (l/min) at heating water flow temperature
90 °C
17
80 °C
17
70 °C
16
Heat-up time
The specified heat-up times will be achieved subject to the maximum
continuous output of the DHW cylinder being made available at the
relevant heating water flow temperature and when DHW is heated from
10 to 60 °C.
Heat-up time (min.) at heating water flow temperature
90 °C
16
80 °C
22
70 °C
30
DHW cylinders
(cont.)
VITOSOL
VIESMANN
59
5822 440 GB
11